FRISCO (CBSDFW.COM) - It sounds hard to believe in the middle of April, but North Texans are preparing for a possible freeze on Monday night. Employees at Shades of Green nursery on Coit Road in Frisco started moving their plants and flowers inside on Sunday. There are about 50,000 plants that will be unsellable if they get hit by the freeze.

Anyone who purchased and planted spring flowers recently, when conditions have been warm and sunny, will need to take steps on Monday to prevent those plants from freezing. It’s recommended that you water them now and cover the soil with mulch. Jeff McCauley, owner of Shades of Green, said that watering the plants creates an igloo effect. “Why do you water plants? So they don’t freeze dry, because once the water freezes at 32, it doesn’t get any colder than 32,” McCauley explained.

Frost clothes will be in high demand on Monday, as people get ready to cover their gardens. But if you cannot get a frost cloth, towels will do just fine, or even plastic as a last resort. But, McCauley said, do not keep the plastic on your plants for more than 12 hours, because those plants need to breathe.

Of course, if you haven’t put those plants in the ground yet — perhaps you just bought them this past weekend — store them in the garage.